newMat=pivot(mat, row, col)

function newMat=pivot(mat, row, col)
%normalize this row
mat(row,:)=mat(row,:)./mat(row, col); %make the leading a  number a 1
for r=1:length(mat(:,1))
	if(r~=row)
		mat=multFromRowToRow(mat, row,r,-mat(r,col));
	end
end
newMat=mat;